Researched and Edited by Rajat Gupta
Last updated: · How we review
Editor's Summary · Disk Cleanup Software
Try an analyzer before a cleaner. On most machines the missing space is a handful of large forgotten files — old disk images, downloads, virtual machines — not accumulated junk, and WinDirStat, TreeSize, DaisyDisk, GrandPerspective and SpaceSniffer will show you that in under a minute. Several of them are free.
If you want automated cleaning, CCleaner, BleachBit and Wise Disk Cleaner do it without much ceremony. BleachBit is open source, which is worth something in a tool whose whole job is deleting your data.
The optimization suites — Advanced SystemCare, System Mechanic, Glary Utilities, BoostSpeed — bundle cleanup with registry repair and performance tuning. The cleanup part works. Treat percentage speed-up claims as marketing, and note that registry cleaning has little measurable benefit on modern Windows.
For uninstalling, Revo and IObit Uninstaller remove the leftovers that vendors' own uninstallers do not.
Quick picks for Disk Cleanup Software
- Best free analyzer — WinDirStat (Windows) / GrandPerspective (Mac)
- Best for IT and file servers — TreeSize
- Best Mac cleaner — CleanMyMac
Who gets the most from Disk Cleanup Software
- 1Users trying to reclaim space on a nearly full drive
- 2IT administrators finding what is filling a shared file server
- 3Anyone clearing years of accumulated software off an older machine
How to choose Disk Cleanup Software
Run a free analyzer first. It costs nothing and usually finds the problem outright, which tells you whether you need to buy anything at all. If you do want automated cleaning, prefer a tool that shows what it will remove before it removes it, and be cautious with registry cleaners — the upside on modern Windows is small and the downside is a broken application. On SSDs, ignore defragmentation entirely.
Our research is independent and data-backed. We review thousands of tools and use real buyer signals — without the hype.
Best picks for
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CCleaner
Effortlessly unlock the full potential of your business PCs.
Best for: SMB teams · Mid-market · Enterprise
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What is CCleaner?
Unleash the power of CCleaner, a robust PC cleaning solution tailored for businesses seeking peak performance. With a focus on scheduled cleaning, CCleaner ensures that your PCs operate at their best without any manual intervention required. Boasting over 2 billion downloads worldwide, CCleaner ...
Read more about CCleanerLearn More About Disk Cleanup Software
Compare 22 disk cleanup and disk space analyzer tools for Windows and macOS on what they remove, safety, platform support and price.
- Whether you want an analyzer that shows you what to delete, or a cleaner that deletes by rule?
- Whether it is SSD-aware — defragmentation and free-space overwriting behave differently on flash storage?
- Whether bundled registry cleaning and optimization claims are things you actually want running?
What is disk cleanup software?
Disk Cleanup Software compared
Spotsaas lists 22 disk cleanup products. The entries below were researched from each vendor's own documentation; where a vendor publishes pricing openly it is shown.
| # | Product | SpotScore | Rating | Reviews | Starting price |
|---|---|---|---|---|---|
| 1 | CCleanerTop rated | — | ★★★★★4.50 | 599 | —Free trial |
| 2 | — | — | — | —Free trial | |
| 3 | — | — | — | — | |
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| 6 | — | — | — | — | |
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| 10 | — | — | — | — |
Ratings shown are from verified Spotsaas reviews where available.
What to check before you buy
Whether you want an analyzer that shows you what to delete, or a cleaner that deletes by rule
Essential questions to ask the vendor:
- Whether you want an analyzer that shows you what to delete, or a cleaner that deletes by rule?
How to overcome it: Run a free analyzer first.
Whether it is SSD-aware — defragmentation and free-space overwriting behave differently on flash storage
Essential questions to ask the vendor:
- Whether it is SSD-aware — defragmentation and free-space overwriting behave differently on flash storage?
How to overcome it: It costs nothing and usually finds the problem outright, which tells you whether you need to buy anything at all.
Whether bundled registry cleaning and optimization claims are things you actually want running
Essential questions to ask the vendor:
- Whether bundled registry cleaning and optimization claims are things you actually want running?
How to overcome it: If you do want automated cleaning, prefer a tool that shows what it will remove before it removes it, and be cautious with registry cleaners — the upside on modern Windows is small and the downside is a broken application.
Who uses Disk Cleanup Software
Typical roles include Users trying to reclaim space on a nearly full drive, IT administrators finding what is filling a shared file server, and Anyone clearing years of accumulated software off an older machine.
Frequently asked questions
Basics FAQs
What is disk cleanup software?
Pricing FAQs
Is there free disk cleanup software?
Yes. 17 of the 22 products listed offer a genuinely free or freemium tier: BleachBit, CleanMyMac, TreeSize, WinDirStat, SpaceSniffer, Wise Disk Cleaner, among others. A free trial is not the same thing, and is noted separately on each listing.
Choosing FAQs
How do I choose disk cleanup software?
Run a free analyzer first. It costs nothing and usually finds the problem outright, which tells you whether you need to buy anything at all. If you do want automated cleaning, prefer a tool that shows what it will remove before it removes it, and be cautious with registry cleaners — the upside on modern Windows is small and the downside is a broken application. On SSDs, ignore defragmentation entirely.
Buyers FAQs
Who uses disk cleanup software?
Typically users trying to reclaim space on a nearly full drive; iT administrators finding what is filling a shared file server; anyone clearing years of accumulated software off an older machine.
Coverage FAQs
How many disk cleanup products does Spotsaas track?
Spotsaas currently lists 22 products in this category. Listings are researched from vendor documentation and updated as the market changes.
Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].